tubes ani



l' T i dll macerie .1

" State "of New Hampshire,- have invented a new and useful@Machinetfor `Sawing "Fire Wood 'andforaother,` Pur? osesyofiwhioh the T following is al full;clear,` exact descr-ipv tion lidrawings,inwhioh` c i n 1 Figure bl'f iS anwisometrlc c iew` ofthe; mafchine."` Fig: 2; ari isometric fview; of]` certain of# the f operating wparts ofw the` `machine v detached freinA theyn frame rk,` andi `upon an 6,vand175det n t d d theartttounf` derstandtmy` invention i Il will ,i proceed to` de-` constructed andjoperated "i t The severalifstepsvmrn theoperationfofi l erinthe `followi-v hast `been again fedi forward and fhas"` become Iinlilnaorderilcontinuouslyt);i; it c i `The above" operations wil-lynow `be` describedsinaorder."`

in? Fig. 55 i and istconstructed as t follows wf is;` the rigid jawwhich, is` secured; to `the movable jaw by. 1I n i t d s i a; pawl pivoted? to "thej aw b; and i engaging with therackdbarld which is" "also f secured? to the body ofqthefclamp y f i tached;` thereto.` "It isi fedfforward intermiti entlytofbringitheilogfuplto the action of the 'nthewfollowingymanner:i i 4 1s lthedrivinlgshaf taloneyend of which Securedwhepuflle from this millerv y;reference` bein had "towthe annexed scribe?" thel manner-"` intwhich my machine is 1 stationary, when itA is dropped upon thelog asrbefore` and the@ stepsfsucceed each other 'sttthez `frame work vwhich supports all the. operating; parte; off the machine. From foneuofi",theside" timbers `project right angles the ways" Bgfupon which .thefeeding "clamp,` traverses; thisyclar'npQ is seen detached riphery of?` the diskiU, the other end of;

"'Lheymovable n j aw" isfl pivoted at; a? i and is; perated by )the arinw e; and thus i the log is `securely*:clamped'asyseenin` Fig,` 5. This i clamp "is drawn backintdthe positionfseen t `inrnisnstporjliniliiiero1\i,jNew@HAMPsnmnAssieNoR rro E, Av.l fringesunfI w i t n.roROXon n i" A FonsnwrNe BIETE-Wool); `@w-` 1f i Emotion is communicated byfmeans of the d '213131555 oft Hampton,` in :thecounty` of@ Rockinghamand,

band G" to theV pulley H which runs freely?,` iupon the feeding shaftI; d

\ K is a drum upon theshaft-L and revolveY ing with it;upon this drllmxiswounds the cord or chain WV Awhich issecuredito ofthe rod m, attachedto theldog C'.

` Motion is connnunicatedtothe drurniK` `the y alternate clutching andi unclutchingof `thepulley/Hwith the shaft I`in' thefol' lowingmannerf L is a ,clutch` hich `slides freelyuponfgther shaft L and i withl which it revolves it`s teeth..V

1 `are lengaged with those upon the wheel and disengaged therefrom bymeans; of E the,A a forked lever` M, which is moved as, ,follows;.` is a `gear which vengages with the geaiyf and together with the ratchet-wheel. 'Rf runsloosely upon the shaft O; the ratchet?V `teeth of the ratchet wheel 1R; there aretwo;`

jnotches or Vv-depressions in the f disk Uiv-hflandl i di-into either` oneof which the end of the;A

5 lever T is pressed by the spring Z: When; this `endof the lever is` thus depressedfthei other end is; raised; out off the notchesor,4 teethiof the wheel R, and this wheel together; Lwth the gear N; revolves freelyiupon the] shaft O. When the lever VT` israised outu of, thenotches 7L and z', and rests upontheipestrikes alternately one ort-iothelf. of the@4 prongs f, gyof theforked` levergM, byiwhiclljf means this'lever is moved andthe clutchtliy;` and pulley Hy are'` lockedon unlocked. Thea leverT is operated in a manner whichwill be hereafter, described As; the drunfi K" is.

Lrevolvedfby'the connections thus eirplained,"`

wheel R andthe gear N5 are securedtogether. i and they are,clutchedatvintervalswithithe"l shaft by the following means:` A t l S isa stud secured tothecenter offthe tback and n forth until@ the: cut `is made; 4th. "The saw is raised andheldffupuntil the flog "ther-ndi, i

lat'the required moment to feed the logfI therefronr` is` the" shipping finger Q, which the cord W is wound upon it, and the log is fed in beneath the saw. When it has reached the desired point its motion is stopped by the following means: While the log is being fed in, the lever T is above the shaft in the position seen in Fig. 7 and opposite to that seen in Fig. Q-one end rest ing in the notch z'. When the parts are in this position the gear N and toothed wheel R revolve without the shaft O.

X is a shaft running longitudinally through the machine, from which rises the stop Z against which the log strikes as it is fed into the machine.

p is a short arm projecting from the shaft X to which is connected the upright rod A.

B is an arm attached to the rod A which projects horizontally over the shaft O and lever T.

As the log is fed in its strikes the stop Z, by which means the shaft X is revolved, and the arm B is made to press upon the lever T disengaging one end of it from the notch e', and locking the other end with the ratchet wheel R, by which means the shaft O is set in motion, and the shipping linger Q, striking against the pro-ng f, of the clutch lever M, releases the clutch L from the revolving pulley H, and thus the feed is stopped.

The second step in the operationis to clamp the log previous to the descent of the saw. This is eected by the stationary clamp C which will now be described. This clamp consists of two jaws a b', which are pivoted to the hanger c. These jaws are closed in the following manner:

D is a spring bar pivoted at cl to the frame work, and having a slot near its center through which pass the bent ends of the jaws a', b. The lever D is connected by means of the rod f to a crank g-and the parts are so adjusted to each other that when the crank descends as in Fig. l, the jaws shall be closed, and when the crank g ascends the jaws shall be left at liberty to open. In order that this clamp may operate alike upon a large log or a small one thel lever D is made to spring in the center that it may yield after it has put a certain pres` sure upon the jaws, and thus the clamp can accommodate itself to the varying size of the logs as required, without constant readjustment. The log being now held firmly it remains to show the manner in which the saw is dropped, and vibrated to make the cut.

E is a frame which slides vertically up and down in grooves h, (Figs. l and 6). The ends of th1s frame are connected by the longitudinal rods m. These rods serve as ways upon which vibrates the saw F, which is driven by the crank Gr upon the revolving shaft H', the latter being set in motion by the band l upon the pulleys K L as seen N is a lever suspended from the point '11,',-

(Fig. 1,) to one end of which is suspended the frame E, a portion of the weight of this frame, together with that of the saw which its sustains being counterbalanced by the weight O.

P is a shaft having a crank Q in its center and the wheel R upon one end. This wheel is cogged upon one half only of its periphery for a purpose which will be presently explained. The crank Q, is connected with the lever N by means of the chain p', the latter being of such length that when the crank is in its lowest position as seen in Fig. 6 the saw and frame are raised, the crank Q being caught against the spring stop S', and prevented from revolving further. The crankis released from this stop at the required instant for the purpose of dropping the saw by the pin Q, which strikes against the rod r and depresses the stop. The crank is thus permitted to turn sufli ciently to drop the saw upon the log, but not sufficiently far to cause the teeth of the wheel R to engage with those of the wheel P. The saw is kept constantly vibrating by the crank G as before explained, and when the cut is finished the saw descends so low that the teeth of the wheel R are caused to engage with the wheel P, by which means the crank Q is again carried round to the position seen in Fig. 6, and the saw is raised. This happens whenever the saw passes through the log and descends so low as to engage the wheels R and P with each other. The saw remains thus elevated and the lever T remains in the position seen in Fig. 7 above the shaft O and resting in the notch z' until the log, as it is fed in, again presses upon the stop Z and the lever T is depressed by the descent of the arm B. The shaft O then makes a semi-revolution, causing the pin g to release the crank Q from the stop S at theA same time that the linger Q strikes the prong f of the shipping lever M, and the feed is stopped as before explained. The saw having commenced to ascend, the stationary clamp is opened by the revolution of the crank g', and the drum K is made to revolve for the purpose of making a new feed by the following mechanism:

t is a spring shipping lever, one end of which is attached to the frame work at Fig. l, the other end projecting beneath the lever T when the latter is in the position seen in Figs. l and 2. As now the shaft P continues to revolve the shipper U attached to it strikesthe leyer" l and presses it against `the lever T, and thus the shaft Ois caused to make another semirevolutioniwith the :wheel N,by whichmeans the finger Q is caused to.` strike against the prong g of the shipping lever, which closes "the clutch L,

and causes the drum" `Kfto commence a new feed.` y l `It now remains "only to describe the mannerfinwhichtherevolution of the drum K is f "stopped after theimovable clamp O'has been "y fed` up` so as to come in contact with` the frame `work of themachine.

At the instant i before this takesplace the rod m attached `to the clamp srtikes against the arm `y `(Fig. y

q2) by whichmeans `the post is revolved.` 1 a his an arm, also secured tothe post w', Whichis connectedybymeans of the rod fu `to the shipping leverfM,and thus as the rod m strikesthe` arm y the clutch L is opened i and the feed ceases.

" 1 Operation: `Ifwill `nowexfplain ino-reparticularly thecontinued operation of the `machine recapitulating` all `the steps in the order `in whichI they succeed each other. Starting with the saw `elevated as seen `in 6 andthe'shaftlO and lever T in the `Ifrelative positionseen in Fig. 7 the logis y `thrown on `and secured in the movable clamp C, and power is applied to the main shaft E.

The finger Qupon the shaft O having already closed theclutch L, thedrum K feeds `thelog into themachine and asthecrankfg is in its highest positionthe stationary clamp C is open, the lever Dfbeing raised clear of thebent y ends of zthe jaws a', b', the log is thus "permitted to `feed through this clamp,

` until itystrikes against the stop Z, `by whichv I `means the shaft X is revolved and the arm `B" being thereby `depressed presses the lever p T out of the notch z', and into one o-f the teeth of the wheel R, `which clutches the shaft O with the vcog wheelfN, and this :shaft is caused to make a semirevolution, by `vvhichit is brought into the position seen in Figs. 1 and 2,. the lever T being disengaged fromv thewheel R, and enteringjthe notch h of the plate; U. While `this is Vtakingplace the shipping finger Q has opened the clutch L,

` by which meansthe feed is stopped, andthe pin g has depressed the rod r', permitting "the crank Q whichysupports the saw to escape from the catch S', and the saw descends upon the log, and commences to operate ,the crank g `also having descended to f `its lowestposition depresses the lever D', and `closes the clamp C"upon Vthe log, by

" f whichl it is held firmly untilthe cutis made."

Whilethe sawi is operating u'pon the log, the

Witnesses:

parts remain in the position seen in Fig. 1

`the crank Q not being `raised sufficiently high by the descentV of the saw to bring the teeth of the wheel R into gear with those upon the Wheel I). So soonhowever as the cut is finished the weight of the sawv causes it to descend so as to raise the crank Q into `its highest position, whereby the wheels R and P engage, the former being driven by the latter, a semirevolution and the sawand its frame are raised into the position seen in Fig. 6,'the crankQ resting against the stop S as before.V While this is taking place the shipper U in revolving presses the lever t against the lever T by which means the shaft O is again set in motion, the shipping linger Q striking abainst the prong g closes the clutch for the purpose of operating the feed, and the clamp C is opened as already explained. The operations thus succeed each other automatically until the log is sawed up and the rod mstriking against the apparatus opens the clutch L and stops the feed.

The above described machine may be driven by steam, water, horse or other power, and may be employed whenever it is desired to reduce timber to certain lengths, whether it be for fire Wood, or for 'the purpose of producing bolts for shingles, clapboards, or

other articles.

` I claimy y 1.V I claim the method substantially herein described of bringing the saw into operation by the pressure of the log, upon the stop Z asset forth.

2. I claim the method substantially herein `described of causing the Weight of the saw after it, has passed through the log to bring into operation the mechanism which raises it out of the way preparatory to making another feed.

I claim the method herein described of operating the clamp C, bymeans of the spring bar D', whereby the clamp is ren'- `dered capable of holding logs of varying thicknesses without constant readjustment` y as set forth.

ELIAS A. TUBBS.

`SAM COOPER, JOHN S..CLOW.' 

